Nick Clegg predicted with great accuracy exactly what would happen in the wake of a Leave vote.

So yes, Clegg for PM but I'd have Cable as Chancellor (or as chief negotiator if we have to restrict to serving MPs)

Not sure about all the other positions but I'd be inclined to assign Boris to Scotland and Gove to NI. And maybe make Corby the International Development Secretary and send him on a very long fact-finding mission (obviously he'd want to travel by bike not jet).